Joe, If the valves aren't bent, it's difficult to imagine that the guides sustained any damage. It's easy enough to disassemble the suspected valves and check everything out. If they are damaged, there should be some physical sign to be seen under good light with a magnifying glass. With a broken rocker, the valve should have been completely out of trouble because it stayed closed, hence extremely low probability of guide damage. Remember, if you change guides, you must regrind the valves. All that said, this is a good time to touch up the valves and seats and possibly replace the guide seals. Of course, measure the valve stems for wear and check for guide wear as well.
Stevan Thomas 73 Berlina In a message dated 5/25/2010 6:05:34 PM Pacific Daylight Time, [email protected] writes: > Date: Sun, 23 May 2010 19:23:38 -0400 > From: Joe Elliott <[email protected]> > Subject: [alfa] Re: GTV-6 engine problem > > Good news! I finally got around to removing the affected cylinder > head this afternoon, and confirmed the suspected miracle that the > valves aren't bent! I'm still curious why I broke rockers instead of > bending valves, but the question is strictly academic now. The other > thing I'm wondering is whether the valve guides may be damaged, i.e. > am I going to replace the broken rockers and put everything back > together to discover that I have an engine that will now burn a bunch > of oil? -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
